A/RES/58/136 4. Notes the preparation of a United Nations legislative guide to the universal conventions and protocols related to terrorism, which was reviewed by an expert group hosted by the International Institute of Higher Studies in Criminal Sciences in Siracusa, Italy, from 3 to 5 December 2002, and invites States that have not yet ratified or acceded to the universal conventions and protocols related to terrorism to make use of the legislative guide in their efforts to incorporate the provisions of those instruments into their national legislation; Urges Member States to continue working together, as well as on a 5. regional and bilateral basis and in close cooperation with the United Nations, to prevent and combat acts of terrorism by strengthening international cooperation and technical assistance within the framework of Security Council resolutions 1373 (2001), 1377 (2001) and 1456 (2003) and other relevant international instruments and in accordance with the Charter of the United Nations and international law; Requests the Centre, subject to the availability of regular or 6. extrabudgetary resources, to prepare guidelines on technical assistance according to which the Centre, acting in areas within its competence and in coordination with the Counter-Terrorism Committee, will provide assistance related to promoting the ratification of, accession to and implementation of the universal conventions and protocols related to terrorism and to identify concrete elements of such assistance with a view to facilitating cooperation among Member States in combating terrorism, and to submit those guidelines to Member States for their consideration; Also requests the Centre, subject to the availability of extrabudgetary 7. funds, to intensify its efforts to provide technical assistance, upon request, in preventing and combating terrorism through the implementation of the universal conventions and protocols related to terrorism, with particular emphasis on the need to coordinate its work with the Counter-Terrorism Committee and international, regional and subregional organizations; Expresses its appreciation to donor countries that have supported, 8. through voluntary contributions to the United Nations Crime Prevention and Criminal Justice Fund or through direct contributions to the United Nations Crime Prevention and Criminal Justice Programme network, the launching of the Global Programme against Terrorism, and invites all States to make adequate voluntary contributions to the Fund in order to strengthen the capacity of the Centre to provide technical assistance to requesting Member States, in particular for promoting the ratification of, accession to and implementation of the universal conventions and protocols related to terrorism; Recommends that the Commission on Crime Prevention and Criminal 9. Justice, in coordination with other United Nations entities, in particular the Counter-Terrorism Committee, keep under regular review the progress made by Member States in becoming parties to and implementing the universal conventions and protocols related to terrorism and the needs of Member States requesting technical assistance; 10. Requests the Secretary-General to organize a senior-level discussion during the thirteenth session of the Commission on Crime Prevention and Criminal Justice on progress made with regard to the criminal justice aspects of terrorism and international cooperation and to the universal conventions and protocols related to terrorism, and invites the Counter-Terrorism Committee and relevant international organizations to participate in that discussion; 3